Home / 1,186,902.34-1,637,923.03-643,051.64

Finding the Fourth Proportional to 1,186,902.34, 1,637,923.03 and 643,051.64

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Solution

The fourth proportional to 1,186,902.34, 1,637,923.03 and 643,051.64 is: 887,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,902.34 : 1,637,923.03 = 643,051.64 : x
  2. Step 2: Convert to fraction form
    1,186,902.34/1,637,923.03 = 643,051.64/x
  3. Step 3: Cross multiply
    1,186,902.34x = 1,637,923.03 × 643,051.64
  4. Step 4: Simplify right side
    1,186,902.34x = 1,053,269,093,122.45
  5. Step 5: Solve for x
    x = 1,053,269,093,122.45/1,186,902.34
  6. Step 6: Final answer
    x = 887,410.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.